Surgery – Instruments – Orthopedic instrumentation
Patent
1990-02-07
1991-09-10
Isabella, David J.
Surgery
Instruments
Orthopedic instrumentation
A61F 504
Patent
active
050470337
ABSTRACT:
A guide apparatus for preparing the femur of a patient with a rotary mill to receive a femoral hip prosthesis includes a V-shaped guide body having a lower end base portion adapted to extend into the intermedullary canal of the femur and an upper end portion comprised of at least two spaced apart struts so that the overall guide body had a configuration substantially the same as the prosthesis body sought to be implanted in the patient. The lower end of the guide body base provides one or more hemispherical receptacles for holding the hemispherical end portion of a spinning mill bit. A preferably removable transverse guide rail has connection pins at one end portion thereof for forming a connection with the upper end of the guide body at one of the struts, the arm having a curved surface that is adapted to guide the mill bit during preparation of the intermedullary canal of the patient's femur for receiving a hip prosthesis thereafter.
REFERENCES:
patent: 4399813 (1983-08-01), Barber
patent: 4515154 (1985-05-01), Leonard
patent: 4722331 (1988-02-01), Fox
patent: 4738256 (1988-04-01), Freeman et al.
patent: 4777942 (1988-10-01), Frey et al.
Isabella David J.
Smith & Nephew Richards Inc.
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